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计算机工程 ›› 2007, Vol. 33 ›› Issue (03): 43-44. doi: 10.3969/j.issn.1000-3428.2007.03.016

• 软件技术与数据库 • 上一篇    下一篇

一种有效的Web代理缓存替换算法

杨春贵,吴产乐,彭鸿雁   

  1. (武汉大学国家多媒体软件工程技术研究中心,武汉 430072)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-02-05 发布日期:2007-02-05

Effective Web Proxy Cache Replacement Algorithm

YANG Chungui, WU Chanle, PENG Hongyan   

  1. (National Engineering Center of Multimedia Software, Wuhan University, Wuhan 430072)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-05 Published:2007-02-05

摘要: 设计良好的Web缓存替换策略能使网络上的资源得到最有效的利用。文章设计了一个较有效率的Web缓存替换策略LFRU,期望以较佳的方式获得网络资源及改善Web缓存的性能和服务质量。实验结果表明该策略有较高的文档命中率和字节命中率。

关键词: Web代理缓存, 替换策略, 文档命中率, 字节命中率

Abstract: When the requested objects cannot be found in the Web cache and Web cache is full, the removed objects are determined by the efficient cache replacement policy to achieve fewer removals and higher cache utilization. This paper proposes a new and efficient cache replacement policy to improve the processing performance and enhance the quality of service (QoS) on the Web servers. The results of experimentation show that this formula can achieve both document hit rate and document byte hit rate.

Key words: Web proxy cache, Replacement algorithm, Document hit rate, Byte hit rate